Our round adjustable air vent covers are the fit addition to your RV or yacht's air conditioning system. They provide excellent airflow control, enabling you to adjust the ventilation to suit your needs. The ABS materials used in their construction ensure they are reliable. Features -Color:Black -Material:ABS -Size:11.50X11.50X2.00cm/4.52X4.52X0.79in -Innovative: This innovative vent design allows users to easily control airflow, significantly improving the air quality in your space -Versatile: Designed to be compatible with a wide range of air conditioning systems, making it ideal for use in rvs and yachts -Simple installation: The installation process is user-friendly and , requiring no special tools or assistance -Robust: Constructed from firm ABS materials, these vents are built to be firm and provide performance -Useful: The boat vent louvered covers offer a great solution for enhancing ventilation in your vehicle or yacht Package list: 2 vent covers